Serving the North Brooklyn community since 2012.


We are a community of coaches, clients, family, and friends all mutually dedicated to the improvement of ourselves, the improvement of others, and the improvement of the local area through health and fitness.

Our coaches are a dedicated group of fitness experts, and our members are a tight-knit crew. We welcome those of all skills, abilities, and physical levels. We sweat together, laugh together, and sometimes even bleed together. We treat one another with courtesy and respect, and support each other through every last rep. When you join CrossFit Greenpoint, you can expect to be welcomed, challenged, and supported every time you walk through the door.


Our Coaches


Ron Yellin

Owner/Head Coach

Martial Artist, Former Competitive CrossFit Athlete and National Level Weightlifter, Marathon Runner, Triathlete. A Fitness Virtuoso.

Michael Tiberia

Owner/Head Coach

Mike is a fitness thrill-seeker of sorts, always searching for the ultimate workout.


Deanna Gibaldi

Former competitive cheerleader turned 2x CrossFit Games athlete.

Naomi Gillies

Musician, triathlete, lover of dogs, cats, and Halo Top.


Timur Tisuray

Lawyer, ultra runner, hype man.

Kylee Claxton

CrossFit Games athlete, singer, and owner of Uplift Clothing Crew.


Vinny Ku

United States Marine and Kanga’s dad.


House Rules



Respect each other's time. Please try to show up on time. We understand commuting issues happen, but remember - when you show up 10 minutes late to class, chances are you’ve missed the warm up and a review of the movements. It’s not fair to the rest of the group if they’re forced to wait while you catch up. Try and give yourself an extra few minutes for the commute, you can always stretch or practice pull-ups if you’re early.



Support your fellow members. When you join CrossFit Greenpoint you become part of a community. We sweat together, laugh together, cry together and even bleed together. Treat one another with courtesy and respect. If you finish a WOD and see someone else struggling to get through it, go over and cheer them on. You’ll want the same when you find yourself in that position.


Clean Up

Treat the gym as if it were your home. Help keep it clean and organized. Throw out your empty water bottles and trash, and try not to get chalk all over the place. When you're done working out, please put the weights and equipment away. If you’ve finished but another member hasn’t, go help them out. 



Listen to the coaches. When we tell you to do something it’s for your safety or the safety of other members. If we tell you to scale the weight or to slow down and watch your form -  trust us and follow our advice. We know it’s tough to keep your ego in check, but we have your best interests at heart. There is no sense in compromising form to use heavier weight, or to move too quickly through an exercise when it could lead to injury. Likewise, if you are unnecessarily dropping a loaded bar without any control you could injure a fellow member (not to mention damage the equipment). Please heed our advice.


Be Mindful

Be respectful of the neighborhood. The community extends past the doors of CrossFit Greenpoint itself. Remember that when doing an 800 meter run, or sitting on the sidewalk, trying to catch your breath after completing your 20th round of Cindy. Don’t block the sidewalks or roadways, announce yourself when running up behind someone, and be courteous and friendly to our neighbors. Happy neighbors make it easier for us to operate.



Contact Us

If you are interested in becoming a member or learning more about our services, send us a message and let us know how we can help.

If you are new to CrossFit and are interested in signing up for a free intro session, please sign up here.

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